メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.759023617729 35.4280443508674, 136.759279337802 35.4280308030933, 136.759497339692 35.4282041291326, 136.759786041114 35.4284336716834, 136.759841929041 35.428509347082, 136.75905706784 35.428560952301, 136.759066691849 35.4286577043261, 136.758675672103 35.4284756335594, 136.758130585235 35.4282218513678, 136.758112508356 35.4281556331519, 136.758027776558 35.4278971550138, 136.75899711776 35.4277707881014, 136.759023617729 35.4280443508674)) ^^http://www.opengis.net/ont/geosparql#wktLiteral